This word is commonly used to refer to “viral videos,” videos that are shared rapidly on the internet, usually because of funny, cute, shocking, or thought-provoking content.

Survival Predictions:

This sense of the word “viral” is already quite common day-to-day English speech, and it describes a concept that is likely to last for a long time unless something about the internet changes dramatically and unexpectedly in the near future, so I think the word will survive.

Lexopinions: I think this word describes a concept that needs its own descriptor, and because this new meaning is fairly distinct in concept from the original medical meaning, I doubt it will cause much confusion.